linux-5.10/lib/string.c

3  *  linux/lib/string.c
10  * as inline code in <asm-xx/string.h>
24 #include <linux/string.h>
38  * strncasecmp - Case insensitive, length-limited string comparison
39  * @s1: One string
40  * @s2: The other string
84  * strcpy - Copy a %NUL terminated string
85  * @dest: Where to copy the string to
86  * @src: Where to copy the string from
102  * strncpy - Copy a length-limited, C-string
103  * @dest: Where to copy the string to
104  * @src: Where to copy the string from
131  * strlcpy - Copy a C-string into a sized buffer
132  * @dest: Where to copy the string to
133  * @src: Where to copy the string from
137  * NUL-terminated string that fits in the buffer (unless,
157  * strscpy - Copy a C-string into a sized buffer
158  * @dest: Where to copy the string to
159  * @src: Where to copy the string from
162  * Copy the string, or as much of it as fits, into the dest buffer.  The
163  * behavior is undefined if the string buffers overlap.  The destination
167  * from the src string beyond the specified "count" bytes, and since
169  * In addition, the implementation is robust to the string changing out
172  * Preferred to strncpy() since it always returns a valid string, and
242  * strscpy_pad() - Copy a C-string into a sized buffer
243  * @dest: Where to copy the string to
244  * @src: Where to copy the string from
247  * Copy the string, or as much of it as fits, into the dest buffer.  The
248  * behavior is undefined if the string buffers overlap.  The destination
251  * If the source string is shorter than the destination buffer, zeros
276  * stpcpy - copy a string from src to dest returning a pointer to the new end
278  * @dest: pointer to end of string being copied into. Must be large enough
280  * @src: pointer to the beginning of string being copied from. Must not overlap
301  * strcat - Append one %NUL-terminated string to another
302  * @dest: The string to be appended to
303  * @src: The string to append to it
321  * strncat - Append a length-limited, C-string to another
322  * @dest: The string to be appended to
323  * @src: The string to append to it
350  * strlcat - Append a length-limited, C-string to another
351  * @dest: The string to be appended to
352  * @src: The string to append to it
378  * @cs: One string
379  * @ct: Another string
402  * @cs: One string
403  * @ct: Another string
426  * strchr - Find the first occurrence of a character in a string
427  * @s: The string to be searched
430  * Note that the %NUL-terminator is considered part of the string, and can
445  * strchrnul - Find and return a character in a string, or end of string
446  * @s: The string to be searched
462  * strnchrnul - Find and return a character in a length limited string,
463  * or end of string
464  * @s: The string to be searched
469  * then return a pointer to the last character of the string.
480  * strrchr - Find the last occurrence of a character in a string
481  * @s: The string to be searched
498  * strnchr - Find a character in a length limited string
499  * @s: The string to be searched
503  * Note that the %NUL-terminator is considered part of the string, and can
521  * @str: The string to be stripped.
535  * @s: The string to be stripped.
538  * in the given string @s. Returns a pointer to the first non-whitespace
561  * strlen - Find the length of a string
562  * @s: The string to be sized
577  * strnlen - Find the length of a length-limited string
578  * @s: The string to be sized
595  * @s: The string to be searched
596  * @accept: The string to search for
622  * @s: The string to be searched
623  * @reject: The string to avoid
646  * @cs: The string to be searched
666  * strsep - Split a string into tokens
667  * @s: The string to be searched
695  * @s1: one string
696  * @s2: another string
699  * NUL and newline-then-NUL as equivalent string terminations.  It's
721  * match_string - matches given string in an array
724  * @string:	string to match with
726  * This routine will look for a string in an array of strings up to the
735  * index of a @string in the @array if matches, or %-EINVAL otherwise.
737 int match_string(const char * const *array, size_t n, const char *string)  in match_string()  argument
746 		if (!strcmp(item, string))  in match_string()
755  * __sysfs_match_string - matches given string in an array
758  * @str: string to match with
763  * This routine will look for a string in an array of strings up to the
996  * strstr - Find the first substring in a %NUL terminated string
997  * @s1: The string to be searched
998  * @s2: The string to search for
1021  * strnstr - Find the first substring in a length-limited string
1022  * @s1: The string to be searched
1023  * @s2: The string to search for
1134  * strreplace - Replace all occurrences of character in string.
1135  * @s: The string to operate on.